I have thrown the test tern of a local pro and it was fast, quite under stable, and had great glide. With 350 -400 ft of power it would turn up and over from a hyzer, but with some air it would come back. Thrown with >400 ft of power and it needs a deep hyzer or it didn't come back. I threw it on some spike hyzer lines at Bradford (course has a couple holes where the intended line is a 380 ft spike over some cedars) and it worked well unless I torqued it. Downside for me is the shallow grip. If that doesn't bother you, then they are controllable under stable with power or slightly under stable with a weaker arm. Fyi, the one I threw was domey and in a clear gummy champion plastic.